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Proposed changes

pick #41555 #41592 #38204

…e#41555)

For plan `local exchange (hash shuffle) -> union -> colocated agg`, we
must ensure local exchange use the same hash algorithm as MPP shuffling.

This problem is covered by our test cases but only can be reproduced on
multiple BEs so no case is added in this PR.
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@Gabriel39
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run buildall

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clang-tidy review says "All clean, LGTM! 👍"

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TeamCity be ut coverage result:
Function Coverage: 36.03% (9340/25923)
Line Coverage: 27.62% (76738/277873)
Region Coverage: 26.42% (39406/149180)
Branch Coverage: 23.21% (20051/86406)
Coverage Report: http://coverage.selectdb-in.cc/coverage/0e1dd7b266515434321457e817995b1caf80e8cc_0e1dd7b266515434321457e817995b1caf80e8cc/report/index.html

@Gabriel39 Gabriel39 merged commit f112af0 into apache:branch-2.1 Oct 14, 2024
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2 participants